At the simplest level, the book could have been graced with better figures. Most of these are screen captures of terminal windows, showing the output from running various commands. Problem is, the capturing was too low resolution. The images are fuzzy, compared to the regular text. To some readers, this is no big deal. But to others, it might appear sloppy.



The book appears to be a little skimpy on all that Xen can do. Perhaps you can best treat it as a first course in using Xen. And to be fair to the author, the title does indeed opine "fast".



The descriptions of what to do are straightforward. You shouldn't have any trouble with these. Some readers might say that you can get the gist of this from the documentation that comes with Xen. But typically, such documentation is sparse, and this book must surely be more readable.



One side benefit from using the book is that it introduces you to other open source packages, like NetBSD or CentOS. It is nice that Xen provides a hypervisor wrapper capable of simultaneously running these as "client" systems.

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